In 2001, Endo assisted in the production of Alec Empire's solo album, Intelligence and Sacrifice. She has also since been a part of Empire's touring band, and was also involved with his follow-up album Futurist (2005). In 2010 ATR reformed and Endo has taken Hanin Elias's slot as the female vocalist in ATR. Her trademark style is her black leather and white face paint overlaid by the characters 抵抗, meaning "resistance".